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EVAPORATOR.

No. 550,699. Patented Dec. 3, 1895.

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J. VAN RUYMBEKE.

BVAPORATOR. y Q No. 550,699. Patented Deo. @$1895 N fa Y ulliill,

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.(No Model.)

J. VAN RUYMBEKB.

Patented Deo. 3, 1895..

BVAPoRAToR.

.IOSEPl-I VAN RUYMBOEKE, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO VILLIAM F. JOBBINS, OF SAME PLACE.

EVAPO RATO R.

SPECIFICATION forming part of Letters Patent No. 550,699, dated December 3, 1895.

Application lled December 22, 1890. Serial No. 375,458. (No model.) I

To all whom may cwftf the rst pan A with the heating-drum of the Be it known that I, JOSEPH VAN RUYM- second pan B, and a similar vapor-pipe o2 BEKE, a subject of the King of Belgium, reconnects the top of the second pan B with siding at Chicago, in the county of Cook and the heating-drum of the third pan C. rlhe 55 5 State of Illinois, have inventedacertain new pan C is connected with a catch-all R by and useful Improvement in Evaporators, means of a vapor-pipe o3. Said catch-all R which is fully set forth in the following speciconsists of a cylindrical casing supported on fication, reference being had to the accompillars or posts and with a pipe S, open at its panying drawings, in which `upper end, extending up within said casing 6o ro Figurel is a plan of the top. Fig. 2is a front above the mouth of the vap0r-pipe 03. The elevation, a part of the second pan being Ipipe Scommunicates withacondenser K, and broken away. Fig. 3 is a section of the third la vacuum-pump L is connected with said conpan, seen from the right hand, Fig. 2. ,denser for maintaining the desired degree of -My invention relates to improvements in vacuum in said condenser, catch-all, and the 65 i 5 evaporators, the points of novelty of which various evaporating-pans.

are specically set forth in the claim.

In the drawings I have represented an ap- Liquid is supplice to the first pan A at a vpoint immediately above the heating-drum paratus which embodies my `invention andin which three evaporating-pans A, B, and C therein through a pipe u by means of a pump 2o are employed. These pans are preferably F. The lower end of the pan A is connected 7o with the pan B by a pipe a, which leads into cylindrical in shape and are supported within a frame D by meansof pillars or posts E.

`said Y pan B immediately above' the heatingdrum therein, and said pan B is connected Said pans are preferably of gradually-increas ing size, whereby a larger amount of liquid 1in the same way to the pan O by a vpipe u2; The lower end of the pan C connects with a 75 25 may be subjected to heat in the last pan; but `pump II by a pipe ug, and said pump forces this is not necessary. A manhole is formed in the evaporated liquid to a receiving-tank, if the top and bottom of each pan, by means of of value, or to the sewer or elsewhere, if worthwhich the interiors thereofmaybe reached for less. The pipes u, u2, and a3 connect with cleaningthe same. Within each pan (see Fig. the sewer by means of valved pipes w, 102, 8o 3o 3) are two heads or flue-sheets c and o', which are connected by ilues 1f t, whereby a heatingand w3, normally closed, and which ma f be opened when it is desired to liush or clean drum V will be formed. Beneath this drum is a chamber NV for receiving sediment or the apparatus with steam or water. Suitable concentrated liquid, the bottom of the pan pipes s', s2, and s3 are employed for admitting steam or water for this purpose, said pipes 85 35 being concaved for this purpose, and above the said drum is a chamber U, of sufcient 'leading into the various pans `beneath the size to allow for foaming of the liquid.

heating-drums thereof.

The heating-drum of the pan A is provided The heating-drum V of the pan A is supplied with live steam through a pipe M, and

with a valved dri p-pipe d for carrying off the 4o the heating-drum of the middle pan B is supwater of condensation from the live steam 9o therein, the heating-drum of the pan B with plied, preferably, with exhaust-steam through a pipe N. This exhauststeam may be oba valved pipe d2 for carrying olf the condensed exhaust-steam and vapors therein, tained from the several pumps which are to be used with the apparatus, as will be exand the heating-drum of the pan C with a valved pipe d3 for carrying off the condensed 9 5 45 plained, or from the operating-engine, if one be used.

vapors therein. Normally all of the valves The heating-drum of the pan C `is not supin these pipes are closed and are only opened when a considerable quantity of condensable plied with steam, but is heated entirely by hot vapors from the pan B, although this is vapors have accumulated in the several heating-drums. The amount of liquid in said Ico 5o not necessary.

A large vapor-pipe o connects the top of heatingdrums will be indicated by water columns f,f2, and f3. Other water columns c', c2, and cS are employed for indicating the height of the liquid on the respective pans, and vacuum-gages g', g2, and indicate the degree of vacuum therein.

In employing my improved apparatus for the evaporation of brine, for example, I proceed as follows: rlhe pumps F, Il, and L are operated, and exhaust-steam from said pumps is supplied to the heating-drum of the pan B by the pipe N. Live steam is supplied to the heatinglrum ofthe pan A by the pipe M. The weak brine is now pumped by the pump F through the pipe u into the pan A, and the supply thereto is so regulated as to keep the height of the liquid at or slightly above the upper end of theheating-drum thereof. rlhis liquid will lill the tubes t of said drums and the lower part of the pan and will be subjected to the heating eiects of the live steam by said tubes and the two heads or ends of the heating-drum. The proper degree of heat being maintained, the liquid will be evaporated and the hot vapors will pass through the vaporpipe 0 and will enter the heating-drum of the pan B,where,in conjunction with the exhauststeam therein, the said vapors will heat the liquid in the said pan B. The liquid in the lower part or chamber XV of the pan A, which liquid will be partly evaporated, will iiow through the pipe u' and will enter the pan B, so as to fill the same to about the top of the heating-drum therein. The liquid thus flows from the pan A to the pan B by reason of the partial vacuum created in the latter by the vacuum-pump L. The partially-evaporated liquid in the pan B, being heated bythe heating-drum therein, will be evaporated and the vapors therefrom will pass through the vaporpipe 02 into the heating-drum of the pan C, where they serve to evaporate the liquid therein. This liquid is supplied to the pan C from the pan B through the pipe a2 by reason of the liquid thus the vacuum in the pan L', and

of the pan B In the pan drawn from the lower portion will have been twice evaporated.

C the liquid is subjected to a third and iinal evaporation, although it is of course evident that any desired number of evaporatin g-pans may be employed, whereby the liquid may be 5 o subjected to any desired number of evaporating operations. From the evaporating-pan C the vapors are conveyed to the catch-all R, where said vapors impinge against the upper portion of the pipe S, and any moisture carried bysaid vapors or mechanically entrained therewith will be condensed and collected in the catch-all and be removed, when desired, by a pipe r and returned to the pan C.

The evaporated liquid from the lower portion of the pan C may be pumped from the same by the pump II and is ready for use or for other and fin( l operations to which this invention has no relation.

Having now described my invention, what I claim, and desire to secure by Letters Patent, is

An improved evaporating apparatus, comprising in combination, two or more evaporating pans; flue sheets o, v, within each pan, and tubes connectin g said liuc sheets, whereby a heating drum is formed; a chamber IV beneath said heating drum for receiving the e\f'aporated liquid; a chamber U in said heating drum connected by means of an eduction pipe with the heating drum of the adjacent pan; a pipe a leading into the first pan above the heating drum therein; a pump F for maintaining a supply of liquid to the first pan; pipes connecting the chamber WV of each pan with the adjacent pan above theheatin g drum of said adjacent pan; drain pipes w, 102, connecting the latter pipes with the sewer; live steam pipes s', s2, s3, for supplying live steam tothe interior of the pans for flushing the same; a live steam pipe M for supplying steam to the heating drum of the rst pan; a catch-all R connected with the last pan; a condenser K connected with said catch-all; a vacuum pump L connected with said condenser for maintaining a vacuum in the apparatus; a pump II connected with the last pan for removing the evaporated liquid therefrom; and a pipe N connected with the heating drum of one or more of the intermediate pans, and supplied with exhaust steam from the pumps F, II and L, substantially as set forth.

JOSEPH V AN RUYMBEKE.

Vitnesses:

ALoYsIA HELMICH, A. M. BnsT. 

